Methods to reconstruct bone and joint surfaces in a shoulder joint
AssigneeSubchondral Solutions, Inc.
InventorsDerek Dee, Chris Maurer
Life of this patent
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Abstract
Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the glenohumeral joint or other joint of the shoulder, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint.
Claims20
. A surgical assembly configured for use in a surgery to be performed relative to a glenohumeral or other joint of the shoulder for intervening in subchondral bone therein to ameliorate one or more defects, the surgical assembly comprising:
- a driver instrument;
- and
- a hybrid subchondral implant-biologic member construct configured to be installed relative to the glenohumeral or other joint of the shoulder and comprising:
- a biologic member having a slit formed therethrough, wherein the slit is arranged so that the driver is extending through the slit, wherein the biologic member is tailored to provide therapeutic effect in the glenohumeral or other joint of the shoulder;
- and
- a subchondral implant engaged with the driver, wherein the subchondral implant is sized and shaped to be received into the subchondral bone of the glenohumeral or other joint of the shoulder, wherein the biologic member is secured to the subchondral implant so that the hybrid subchondral implant-biologic member construct is formed on the driver to facilitate installation into the glenohumeral or other joint of the shoulder by operation of the driver.
The surgical assembly of claim 1, wherein the subchondral implant and the biologic member are configured to be installed as the hybrid subchondral implant-biologic member construct over a top of a central post formed by removing a circular portion of the subchondral bone in the glenohumeral or other joint of the shoulder while preserving the central post of the subchondral bone in a substantially undisturbed native state.
The surgical assembly of claim 1, wherein the biologic member is retained folded up over a trailing portion of the subchondral implant by at least one suture or other retainer.
The surgical assembly of claim 1, further comprising at least one retainer securing the biologic member such that at least one portion of the biologic member is atop the subchondral implant and at least one other portion of the biologic member is along a lateral side of the subchondral implant.
The surgical assembly of claim 1, wherein the subchondral implant comprises a cylindrical body having a body outer diameter sized and configured to engage portions of multiple bones along a joint for fusing of the joint, wherein the subchondral implant further comprises a washer flange laterally extending from the cylindrical body away from the body outer diameter and to a washer outer diameter sized to engage the bones along the joint for transferring load thereto.
The surgical assembly of claim 1, further comprising at least one anchor in engagement with a fenestration through the subchondral implant, the anchor coupled with a tether sized and arranged for coupling with the biologic member and/or for coupling with surrounding tissue at an installation site.
The surgical assembly of claim 1, further comprising:
- a guide wire alignable with the driver instrument;
- and
- an alignment attachment comprising a base defining a lumen sized for engaging the guide wire, the alignment attachment further comprising an arm extending from the base and comprising an alignment aperture positioned for receiving a secondary tool therethrough so as to align the secondary tool for operation in parallel or adjacent to operation along the guide wire, wherein the arm is formed with a radius of curvature selected to accommodate a curvature of a surface of the joint.
A method of intervening in subchondral bone to ameliorate one or more defects while preserving a glenohumeral or other joint of the shoulder using a hybrid subchondral implant-biologic member construct, the method comprising:
- a) surgically opening access to a glenohumeral or other joint of the shoulder joint of the patient;
- b) preparing a site of subchondral bone at the glenohumeral or other joint of the shoulder by removing a circular portion of the subchondral bone while preserving a central post of the subchondral bone in a substantially undisturbed native state;
- c) preparing a hybrid subchondral implant-biologic member construct by:
- 1) forming a slit through a biologic member;
- 2) positioning a driver instrument through the slit;
- 3) engaging the driver instrument with a subchondral implant;
- and
- 4) securing the biologic member to the subchondral implant so that the hybrid subchondral implant-biologic member construct is formed;
- and
- d) installing the hybrid subchondral implant-biologic member construct over a top of the central post in the glenohumeral or other joint of the shoulder,
A method of intervening in subchondral bone to fuse a glenohumeral or other joint of the shoulder using a subchondral implant, the method comprising:
- a) surgically opening access to a glenohumeral or other joint of the shoulder joint of the patient;
- b) preparing a site of subchondral bone at the glenohumeral or other joint of the shoulder by removing damaged tissue in and/or between the subchondral bone of multiple bones along the joint so as to form a bore between the multiple bones along the joint;
- c) preparing a subchondral implant;
- and
- d) installing the subchondral implant construct in the bore so that the subchondral implant is engaging the subchondral bone of the multiple bones along the glenohumeral or other joint of the shoulder, wherein the subchondral implant engaging the subchondral bone of the multiple bones resists relative motion therebetween and thus facilitates fusion of the joint.
Dependencies are inferred from the claim text.